A.T. Robertson Commentary 1 Peter 2:25

"For ye were going astray like sheep; but are now returned unto the Shepherd and Bishop of your souls." — 1 Peter 2:25 (ASV)

For ye were going astray like sheep (ητε γαρ ως προβατα πλανωμενο). Brought from Isa 53:6, but changed to periphrastic imperfect indicative with ητε and present middle participle of πλαναω, to wander away. Recall the words of Jesus in Lu 15:4-7.

But are now returned (αλλα επεστραφητε). Second aorist passive indicative of επιστρεφω, old verb, to turn, to return (Matthew 10:13).

Unto the Shepherd and Bishop of your souls (επ τον ποιμενα κα επισκοπον των ψυχων υμων). Jesus called himself the Good Shepherd (John 10:11, and see also Heb 13:20). Here alone is Christ called our "Bishop" (overseer). See both ideas combined in Eze 34:11. Philo calls God Επισχοπος. Jesus is also ΑποστολοςHebrews 3:1) and he deserves all other titles of dignity that we can give him.